Permutation-padlock



` to work between said stationary disks and opf UNTTED STATES PATENT Orricn.

EPHRAIM R. BENEFIEL, OF STAFFORD, KANSAS.

PERM UTATlON-PADLOCK.

SPECIFICATION forming part of Letters Patent No. 465,315, dated December 15, 1891.

' Application ned June 26,1891. serai No. 397,642. (Model.)

To a/ZZ whom t may concern.-

Be it known that I, EPHRAIM R. BENEFIEL, a citizen of the United States, residing at Stafford, in the 'county of Stafford and State of Kansas, have invented a new and useful Permutation-Padlock, of which the following is a specication.

My invention relates to improvements in permutation-padloeks; and it has for its object a simple and cheaply-constructed lock that will be easily operated, and yet at the same time allows for a variety of combinations and forms a secure lock that will be impossible .to be opened unless the combination is known; and it consists of an alternate series of stationary disks and revolving tumblers, each tumbler operated independently of each other and combined in a novel arrangement and combination of parts hereinafter more fully described, illustrated in the accompanying drawings, and specifically pointed out in the appended claims.

'In the accompanying drawings, Figure l is a bottom plan view of a permutation-padlock constructed in accordance with my invention. Fig. 2 is a verticall sectional View, the hasp being locked within the same and the key inserted within the lock preparatory to opening. Fig. 3 is a similar view with all the tu mblers having their notches in alignment, illustrating the padlock in its unlocked position. Fig. 4 is a detail in perspective showing the parts of the lock one above the other. Fig. 5 is a transverse sectional view on the line 1 l of Fig. 2. Fig. 6 is a detail in perspective of the key. v

Referring to the accompanying drawlngs by letter, A designates the barrel or casing within which the several parts of the lock are placed. On opposite sides of the interior of said barrel or casing are the two pairs of strips a and a, which form the guides a2 and as, respectively, which register with the openings B, located in the'top of said barrel. lVithin said barrel or casing is placed'a series of stationary disks C, between which are alternately placed revolving disks D, which are adapted era-te the lock. Each stationary disk C is provided on opposite sides with the shoulders 0, which are adapted to abut against the said opposite pair of guide-strips within the casing and hold said stationary disks firmly in4 place. Thek said disks are further provided between said shoulders with squared recesses c', that are adapted to register with the guides a2 and as to form a continuous way, said disks also being provided with segmental flanges c2r and central perforations c3.

The revolving disks or tumblers D. .are adapted to be seated alternately betweenand within the segmental flanges of the stationary disks, and are also provided with the opposite squared recesses d, corresponding to the squared notches or recesses in the stationary disks and registering with the way between the opposite strips Within the casing. Disks or tumblers D are provided with a large central perforation d', the periphery ofwhich is broken byaseries of notches d2, each of which indicates a letter or number of the combination and corresponds in position to that upon the outside face of the bottom dial-plate E. Vithin the perforation d of each tumbler or disk is `placed a circular block or disk F, snugly fitting within said perforation and provided with a tonguef, that is designed t0. engage any one of the series of lettered or numbered notches d2, according to the letter or number of the combination at which it is designed for said disk to be` in the position for withdrawing thehasp.` A slotted perforation f centrally located within said blocks or disks F, is adaptedv to be engaged by the key G, which operates each tumbler.

Any number of stationary and revolving disks may be used as desired and according `to the complexity of combinations required,

and as said disks are placed alternately within the barrel or casing, first the stationary disks with the side iianges, then the revolving disks working within said flanges, and an alternate repetition of this arrangement, the whole being held securelywithin the barrel or casing by means of the bottom dial-cap E, previously referred to. The cap E is composed of two plates e and e', the outer of which is provided with a series of letters or numbers corre- ,.sponding exactly with those upon the notched tumblers or disks within the casing, and is also provided with a central perforation e2, extending through. the entire thickness of said cap, the perforation in the inner plate e being of larger diameter than that of the IOO outer plate, in order that the revolving flanged plate l-I may be seated Within said perforation and be prevented from falling from the same when the lock is inverted, the said revolving plate being provided with a slotted perforation h, correspondin g to that Within the disks which operate the revolving tumblers, said revolving plate being also provided with an indicating-point h', that indicates the alignment of the various tumblers Within the cas- 4ing when the same points to the letters or numbers corresponding to those tumblers.

The plate E is provided with the opposite squared recesses c3,that take over the opposite pairs of strips within the barrel or casing, and alsowith the tongues e4, that take into, they guide or Waybetween the said strips and firmly hold the said bottom plate rigidly, While the projecting ends @son one side of the inner plate e', engaging the notches a4 located at the ends of one pair of strips, securely lock one side of said bottom dial-plate.

Within the guide or way between the strips opposite toA the notched strips a key I is designed to be placed. The lower end of said of the said key is provided withv an inwardly-projfecting tongue i, that is adapted to engage the notch e6, with which' one of the tongues c4 on the bottom plate E is provided,4 while the, other end of said key is provided with the shouldered projection t, that is adapted to seat it. self upon the shoulder 2, located near the top. of the said barrel or casing, and is secured thereto by means of' the screw i3, thus firmly locking the bottom plate Within the bottom of the barrel or casing, and thus holding the several parts of the lock together. Within the opposite way to which the key is placed the ordinary notched shank lo of the hasp` K works, While the short shankv lo" of the same is designed to seat itself' within the perforation located in the top of the barrel-'or casing directly over the shoulder 2, just referred to.

The key G, previously referred to, is provided with a series of marks, accordingto the` number of revolving tumblers Within thecasing, which marks are spaced according to the. distance between said tumblers, and when itis designed tooperate. the lock the dat keyis inserted within the slotted revolving disk located within the bottom plate, and is turned and revolved back and forth until the same l has passed through the slots in each of the circular blocks Within eachl tumbler. It is now turned until the indicating-mark upon thek revolving plate` Within the bottom 'cap of the lock points to the number or letter at which the first tumbler is set to place its opposite notches or recesses in alignment with the guide or Wayin which the notched shank of the hasp works. The key is now Withdrawn one space and is turned to the number or letter at which the next revolving tumbler is placed in its unlocked position, and so on until each tumbler has been unlocked and each 'g part of the combination operated, at which ting at various combinations, a dial plate and cap secured within the bottom of said barrel or casing, and a supplemental key passing through said perforations and said dial plat-e and cap and operating simultaneously the indicator of said dial-plate and said revolvingV tumblers, substantially as set forth.

2.k In a permutation-padlock, a barrel or casin g provided with an opposite pair of strips forming guides. or Ways, a series of' stationary disks provided with "shoulders and squared recesses, a ser-ies of intermediate revolving tumblers alternately interposed between and upon said stationary disks and partially in'-. closed thereby and provided with a series of marked notches. and opposite recesses, a circular block located within said revolving tumblers and provided with a, slotted perforation and a tongue. engaging thenotches in the said tumblers, the stationary bottom dial-pl1ate, a key locking said dial-plate, and a supplemental key passing through the dial-.plateand lock and operating said tumblers, substantially as set forth. p

3:. In aA permutation-padlock, a series of statio/nary. disks provided with eppositesquared recessesand sheul'dersand oppositesegmental flanges, a series otA revolving tumblers alter-V -`nate ly interposed between said stationary jdi'sks and inclosed within said flangesthe. samebeing provided with opposite squared recesses and a central perforation, the periphev ery-of which is broken by a series. of marked g notches, a circular block located Within said j recesses and provided Wit-h a slotted perforag tion and a tongue engaging said notches.. and

a supplemental key passing through Sad disks and tumblers and operating said tumblers, i substantially as set forth.

4. In a permutation-padlock, a barrel or i casing-provided with an opposite pairof strips lforming guides or-Ways, the shackle having a notched shank, an alternate series of stationary disks-and revolving tumblers, a bot,-l tom dial-plate provided with oppositesquared .j recesses and tongues engaging said strips and the guides or Ways, a locking-key provided with opposite tongues or shoulders engaging g said dialplate,-a shoulder located at the top gextremity of one ofv said guides or Ways in the barrel orcasing, and a key for operating- I said tumblers, substantially as set forth..

5. In a permutation-padlock, a barrel or casing provided with an opposite pair of strips IOO lIG

forming guides or ways, the shackle having a notched shank, an alternate series'of stationary disks and revolving tumblers provided With opposite squared recesses or notches and central perforations, each revolvling tumbler being further provided WithV shoulders engaging the notched tongue of said bottom cap, a shoulder located at the top ex- I5 tremity of one of said guides or Ways, and a key for operating said tumblers, substantially as set forth.

In testimony that I claim the foregoing as my own I havel hereto ai'lixed my signature in zo presence of two witnesses.

p EPHRAIM n. BENEFIEL Witnesses: l

J. E. WILEY, E. S. HAnLocK. 

